Crossplay

Is Castlevania: Circle of the Moon crossplay?

Crossplay does not apply to Castlevania: Circle of the Moon: it has no online multiplayer.

A port of Castlevania: Circle of the Moon included in "Castlevania Advance Collection." In Circle of the Moon, you can combine action and attribute cards to create over 80 unique spell effects, ranging from fire whips to ice blizzards, with the "Dual Set-up System." New Quality-of-Life features for this port are included, such as Rewind, Quick Save, and Record/Replay. The new Encyclopedia feature offers helpful information that helps you keep track of items, equipment, enemies, and the Dual Set-up System. With the new DSS Gadget option, you can get on-screen pop-ups that display the DSS Attribute & Action cards that are obtainable from the monsters you encounter in battle. The story follows Nathan Graves, a vampire hunter apprentice who enters Dracula's Castle along with his Master in order to prevent the dreaded return of the Count.